The gray Sanken COS-11D Omni Lavalier Mic for Sony Transmittersis a subminiature lav microphone designed to deliver clear, full-bodied sound and reliable performance, making it a popular choice among industry professionals in broadcast, TV, theater, film, videography, and more. 

Engineered to meet the standards of modern digital wireless microphone systems, the COS-11D is RF shielded to eliminate interference issues and ensure a pristine audio signal. The microphone capsule features a rectangular design that sits vertically, increasing the surface area and allowing this tiny mic to offer a rich, full sound that outperforms many larger models.

The mic's 50 Hz to 20 kHz frequency response rolls-off extreme low end and provides accurate, transparent audio reproduction with a small presence boost in the 6 kHz area for crisp, intelligible speech. With a forgiving omnidirectional polar pattern that picks up sound in a 360° pattern, levels stay consistent even when the subject turns away from the mic.

A water-resistant mesh screen protects against humidity, perspiration, makeup, bad weather, and other potential on-location issues, while the durable cable is also moisture-resistant and built to stay soft and pliable, even after extended use. This version of the COS-11D terminates in a locking 3.5mm connector and is wired for use with Sony transmitters. Accessories are available separately and are not included with this configuration of the microphone.

For Broadcast, Film/Video & Presentation    Omnidirectional for Consistent Levels    For Sony Transmitters with 3.5mm    -9 dB Reduced Sensitivity Level    Rugged 5.9' Cable Stays Pliable    RF Shielded for Digital Wireless    Water Resistant    Small Size Is Easy to Conceal    Requires 3 to 10 VDC

• Sony: Works with Sony bodypack transmitters equipped with a locking 3.5mm connector, including the UWP-D and DWZ Series.
• Also works with many third-party wireless transmitters and portable audio recorders that are equipped to supply 3 to 10 VDC through a locking 3.5mm connector wired for Sony compatibility.

Related Questions and Answers

Q: 1. Would this lavalier mic work in europe? italy?

A: The wireless systems that are sold by B&H are intended for use in North America without a license. The FCC regulations vary in different countries, so a license may be required. The A1: 470 to 516 MHz, A: 516 to 558 MHz, and G: 566 to 608 MHz frequency bands for the Sennheiser EW 112P G4 Camera-Mount Wireless Omni Lavalier Microphone System are all able to be used in Italy, however, a license is required. As additional options for a Sennheiser wireless system that you can use in Italy without a license, you may want to consider the Sennheiser AVX-ME2 SET Digital Camera-Mount Wireless Omni Lavalier Microphone System (B&H #SEAVXME2SET4) or the Sennheiser XSW-D LAVALIER SET Digital Wireless Omni Lavalier Microphone System (B&H # SEWXSLSTR). The AVX system operates on the 1.9 GHz frequency band and includes a plug-in receiver which can be connected to a 3.5mm mic input using the included XLR to 3.5mm cable. The XSW-D system operates on the 2.4 GHz frequency band and can also be used with an XLR female to 3.5mm cable to connect to a 3.5mm mic input. Both systems include the Sennheiser ME 2 II Lavalier Microphone, which is the same microphone that is included with the EW 112P G4 system.

Q: 2. Hi, I own a Sennheiser EW100 G3 Frequency 643.450 MHZ. I want to buy a EW 112P-G4 Omni Directional Mic to work with my EW100 G3 at the same time on my Gh5 XLR unit. Will these 2 wireless mics work with each other with no interference?

A: Yes, they can be used at the same time without interfering with one another. Please be aware that the FCC recently auctioned the 600mHz band away from wireless users, and wireless systems between 614 and 698 mHz will no longer be able to be used in the U.S. after July 2020. https://www.fcc.gov/wireless/bureau-divisions/mobility-division/wireless-microphones

Q: 3. What are the reasons for choosing one of the frequency ranges (470-558 or 558-608) over the other?

A: It also depends where you will be using the device. You can use sites like https://en-us.sennheiser.com/sifa to find which frequency bands in your target area are free or busy. This will narrow it down. If you travel abroad, certain frequencies may be banned or license only. Worth doing a little research into what you need where you are going.

Q: 4. Are these compatible with a dslr?

A: No, this version of the Movo Photo EDGE-DI-DUO 2-Person Digital Wireless Omni Lavalier Microphone System has a receiver with a Lightning connector specifically for use with iPhones. The Movo Photo WMX-1-DUO 2-Person Wireless Lavalier Microphone System (B&H # MOWMX1DUO) is the same system, but it includes a receiver with a 3.5mm output that can be connected to a camera with its included 3.5mm TRS cable and it also includes a 3.5mm TRRS cable for connection to smartphones and tablets. Adapters can be used to enable compatibility. The Apple Lightning to 3.5mm Headphone Jack Adapter (B&H # APLAADAP) can be used for iPhones with a Lightning connector.

Q: 5. The manual says to set AF Out on the receiver to +18 dB. Is this true? Why not 0db?

A: In general, Camera preamps are not the best quality. +18db ensures that you will need the least amount of preamp gain possible, which will maximize the quality you capture with the camera.

Q: 6. Can I used this mic to shoot with my gopro 6?

A: Yes you can, if you have the GoPro Pro 3.5mm Mic Adapter, BH #GO35MA. https://bhpho.to/2xKXdEv

Q: 7. Is this safe to use with the Verizon 5G frequency ban? The FCC says 600MHz, but it also says something about some ranges in the 500MHz frequency band as well.

A: The Sennhieser EW 112P G4 UHF wireless systems work within the FCC- allowed range of 470-608MHz. 5G cellular service operated on higher frequencies than this. Sennheiser wireless systems allow for auto scanning, with 1680 frequencies to choose from, making it easy to find a clean frequency, even in the crowded UHF spectrum. .

Q: 8. Is there a wireless handheld mic that works with this rx?

A: No, there is no compatible wireless handheld transmitter/microphone available for use with the Polsen UWM-2 2-Person Camera-Mount Wireless Omni Lavalier Microphone System.

Q: 9. Does it come with a case?

A: No, it does not. We offer a nice waterproof case from SKB that already has the cut outs for the transmitter and receiver, and has some room for accessories. https://www.bhphotovideo.com/c/product/1288521-REG/skb_3i_0907_bh1_iseries_waterproof_sennheiser_ew.html

Q: 10. Which frequency would be best for Hawaii (specifically the North Shore of Oahu)? I see some frequencies aren't allowed in Hawaii? Maybe? A specific frequency would be appreciated.

A: There is no one frequency that is best to use all of the time. Any of the bands offered will work throughout Hawaii. The reason there are three bands is so that you can use many systems in the same space and at the same time. The receiver will scan for the best available frequency within that band to use at that time. You can use up to around 8 systems in the same band, in the same space and at the same time, before you would need to worry about switching bands for your next group of systems, to avoid interference with your first group of system.